Toothbrush head

Details Toothbrush head Toothbrush head

1996-10-29

1999-03-30

Douglas, Alan P.

Brushware

Toothbrush or handle therefor

0402

Patent

active

D04072227

REFERENCES:
patent: D116838 (1939-09-01), Cave
patent: D240677 (1976-07-01), Thompson
patent: D346697 (1994-05-01), O'Conke
patent: 2443297 (1948-06-01), Bressler
patent: 3188672 (1965-06-01), Gary
patent: 5398369 (1995-03-01), Heinzelman et al.
patent: 5651158 (1997-07-01), Halm

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